CMFCPropertySheet::AddPage doesn't Create Dlg

[VictorN]

@kirants, GCEDF: well, they doesnt !. i have some sontrols which are acting as a listview (report), and im writing to it about every 500ms.

Just do NOT do it until the control will be created!
Again: it does not make any sense to update a control that User cannot or does NOT want to see.